Fix cmp/subcc/addcc op bugs reported by Vince Weaver

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4970 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-07-29 18:11:20 +00:00
parent ab17b46d00
commit dd5e6304aa

View File

@ -386,7 +386,7 @@ static inline void gen_cc_V_add_icc(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_xori_tl(r_temp, r_temp, -1);
tcg_gen_xor_tl(cpu_tmp0, src1, dst);
tcg_gen_and_tl(r_temp, r_temp, cpu_tmp0);
tcg_gen_andi_tl(r_temp, r_temp, (1 << 31));
tcg_gen_andi_tl(r_temp, r_temp, (1ULL << 31));
tcg_gen_shri_tl(r_temp, r_temp, 31 - PSR_OVF_SHIFT);
tcg_gen_trunc_tl_i32(cpu_tmp32, r_temp);
tcg_temp_free(r_temp);
@ -423,7 +423,7 @@ static inline void gen_add_tv(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_xori_tl(r_temp, r_temp, -1);
tcg_gen_xor_tl(cpu_tmp0, src1, dst);
tcg_gen_and_tl(r_temp, r_temp, cpu_tmp0);
tcg_gen_andi_tl(r_temp, r_temp, (1 << 31));
tcg_gen_andi_tl(r_temp, r_temp, (1ULL << 31));
tcg_gen_brcondi_tl(TCG_COND_EQ, r_temp, 0, l1);
r_const = tcg_const_i32(TT_TOVF);
tcg_gen_helper_0_1(raise_exception, r_const);
@ -584,7 +584,7 @@ static inline void gen_cc_V_sub_icc(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_xor_tl(r_temp, src1, src2);
tcg_gen_xor_tl(cpu_tmp0, src1, dst);
tcg_gen_and_tl(r_temp, r_temp, cpu_tmp0);
tcg_gen_andi_tl(r_temp, r_temp, (1 << 31));
tcg_gen_andi_tl(r_temp, r_temp, (1ULL << 31));
tcg_gen_shri_tl(r_temp, r_temp, 31 - PSR_OVF_SHIFT);
tcg_gen_trunc_tl_i32(cpu_tmp32, r_temp);
tcg_gen_or_i32(cpu_psr, cpu_psr, cpu_tmp32);
@ -619,7 +619,7 @@ static inline void gen_sub_tv(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_xor_tl(r_temp, src1, src2);
tcg_gen_xor_tl(cpu_tmp0, src1, dst);
tcg_gen_and_tl(r_temp, r_temp, cpu_tmp0);
tcg_gen_andi_tl(r_temp, r_temp, (1 << 31));
tcg_gen_andi_tl(r_temp, r_temp, (1ULL << 31));
tcg_gen_brcondi_tl(TCG_COND_EQ, r_temp, 0, l1);
r_const = tcg_const_i32(TT_TOVF);
tcg_gen_helper_0_1(raise_exception, r_const);